Finding the Fourth Proportional to 10,961,421.76, 16,420,863.68 and 8,077,556.80
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Solution
The fourth proportional to 10,961,421.76, 16,420,863.68 and 8,077,556.80 is: 12,100,661.94
Step by Step Solution
- Step 1: Write the proportion equation
10,961,421.76 : 16,420,863.68 = 8,077,556.80 : x - Step 2: Convert to fraction form
10,961,421.76/16,420,863.68 = 8,077,556.80/x - Step 3: Cross multiply
10,961,421.76x = 16,420,863.68 × 8,077,556.80 - Step 4: Simplify right side
10,961,421.76x = 132,640,459,080,257.02 - Step 5: Solve for x
x = 132,640,459,080,257.02/10,961,421.76 - Step 6: Final answer
x = 12,100,661.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.